Home / 108,955.06-163,281.39-49,645.78

Finding the Fourth Proportional to 108,955.06, 163,281.39 and 49,645.78

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Solution

The fourth proportional to 108,955.06, 163,281.39 and 49,645.78 is: 74,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,955.06 : 163,281.39 = 49,645.78 : x
  2. Step 2: Convert to fraction form
    108,955.06/163,281.39 = 49,645.78/x
  3. Step 3: Cross multiply
    108,955.06x = 163,281.39 × 49,645.78
  4. Step 4: Simplify right side
    108,955.06x = 8,106,231,966.03
  5. Step 5: Solve for x
    x = 8,106,231,966.03/108,955.06
  6. Step 6: Final answer
    x = 74,399.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.